The big bonus was supposed to be Google's music locker service, which backs up your music library to Google's servers so you can access it from devices. That sounds great in theory, but it requires you to upload the songs from your computer, which is painfully slow.

Apple's similar solution for iTunes user, iTunes Match, is much faster because it simply scans your library then plays duplicates of the songs you already own. (It also costs $25 per year, while Google's locker is free.)

Google Music also allows users to share songs via Google+. But Facebook and its music. partners like Spotify totally trumped that feature, too, by letting you share songs from those services with Facebook. And Facebook has 800 million active users, versus about 90 million registered (but perhaps not very active) users on Google+.

Google is promising execs that its music store will do better once its line of home electronics devices ships later this year, reports CNET.